<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box1{
            width: 100px;
            height: 100px;
            background: pink;
            padding: 20px;
            border: 10px rgba(0, 0, 0, 0.5) solid;
            margin: 20px;
        }
        .box2{
            width: 100px;
            height: 100px;
            background: skyblue;
        }
    </style>
</head>
<body>
    <div class="box1">我是一个盒子</div>
    <div class="box2">我是另一个盒子</div>
</body>
</html>